Home / 627,274.07-865,681.01-355,344.20

Finding the Fourth Proportional to 627,274.07, 865,681.01 and 355,344.20

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Solution

The fourth proportional to 627,274.07, 865,681.01 and 355,344.20 is: 490,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,274.07 : 865,681.01 = 355,344.20 : x
  2. Step 2: Convert to fraction form
    627,274.07/865,681.01 = 355,344.20/x
  3. Step 3: Cross multiply
    627,274.07x = 865,681.01 × 355,344.20
  4. Step 4: Simplify right side
    627,274.07x = 307,614,719,848.52
  5. Step 5: Solve for x
    x = 307,614,719,848.52/627,274.07
  6. Step 6: Final answer
    x = 490,399.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.